Tile.



'E. F. W IEDERH OLDT.

TILE.

APPLIOATION FILED MAR. 31, 1909.

Patented Apr. 18, 1911.

lNVENTOR ERNEST E W/EDE/PHOLDT wmvasszs 1 k w' unrrnn STATES ERNEST F.WIEDEBHOLDT; OF ST. LOUIS CONSTRUCTION comrnivv, or s'r. LOUIS,

, MISSOURI, AssILGNon. mo wmnnnnonn FFICE.

mssoum, a coarom'rron or mIssoURI.

TILE.

Specification of Letters Patent. v Patented Apr, 18,1911.

Application filed March 81, 1909. Serial No. 1=8'i,063.-

To all whom 'it may concern:

Be it known that I, ERNEST F. Winona- HoLur', a citizen of the UnitedStates, reslding at St. Louis, Missouri, have invented'a certain newand. useful Im rovement in= Tiles, of which the following is a full,clear,

and exact description, such fas .will enable others skilled in the artto Which tains to make and use the/same, reference being had to theaccompanying drawings, forming part of this'speification, in which-Figure 1 is a perspective view of a tile of.

my improved construction, showing the same to provide atile having twomainwalls withv as it appears before the temporary webs are removed;Fig. 2 is a plan view of my improved tile with the temporary websbroken.

away; 'Fig. 3 is a plan view of a tile having a modified form ofremovable webs.

My invention relates to a new and improved tile particularly adapted foruse, in the building of walls, chimneys and like structures, the objectof my invention being temporary .webs which are so disposed as to holdthe ends of the walls in proper position when the tile is first formedand during the drying and burning operations, and which temporary websor removable sections are broken out when the tile is ready for use.

To theabove purposes, my invention consists in certain. novel featuresof construc- 7 tion hereinafter more fully described and tamer, or. fora chimney.

vide lateral communication between the spaces on the opposite sides ofsaid wall '2,

spaces are usually filled with self-. hardening plastic material;

which When my"1mproved tile is formed, the outer portions of the arallelwalls 1 are united by transversely disposed webs 4, and formed on theinner faces of said Webs 4 adjacent their ends are grooves 5 preferablyV-shaped, said grooves it apperbeing of such depth as that they extendapproximately halfway through the thickness of said webs. Formed inthe-outer faces of the webs 4 directly .op- 'posite theqgroovesb areshallow grooves 5, and thus weakened lines are formed adjacent the endsof the webs 4 for'the' purpose of readily breaking away the centralortions of said webs when the tile is Formed in the outer face of theremovablesection of each web 4 1s a pair of vertically disposed grooves6 preferably V-shaped in cross-section, and formed on the inner face ofthis removable'se'ction immediately opposite the grooves 6 are shallow.grooves 6 thus forming weakened lines on Whichthe removable section mayreadily break when removed The inner faces of walls 1 and both innerand-outer faces'of the endsections of the webs '4 are scratched orscored to provide nished.

roughened surfaces which materially assist in anchoring the filling ofconcrete or cement which occupies the tile when the same is pos sitionedfor use.

Tiles of my improved construction are usually formed of clay'oranalogous material, the' same being in a plastic. condition, andtherefore said tiles are comparatively soft when first produced, and byproviding the webs 4 betweenthe ends of the walls 1 ,the shape of thetile will be maintained while the same is soft and whilerit is beingdried and burned, and said tile will readily withstand therough usage towhich it is subjected during the handling inthe drying kiln and furnace.The tiles so formed are delivered to the builder with the Webs 4 intactand when the tiles are to beaised in the building of*'a wall, chimney,or the" like, the outer faces of the central sections of the webs 4 arestruck with a hammer or like tool and said central sections will breakaway along the weakened line's formed bythe grooves 6 and 6, and theside vportion of-said eentral sections will break away fromthe e'ndportions of the webs-4 along the weakened lines formed by the grooves 5and 5*, this breakage being illustrated at the right in Fig. 2. Thus theentire cen;

tral portions of the webs 4 are removed an the end portions of said webs4 formyertically disposed flanges on the inner faces ofthe wall 1 whichflangesmaterially assist in rial which occupies the tile.

the anchoring of the. filling of plastic mate: 110.

shage While I prefer to provide a pair of grooves 6 in the outer face ofeach removable se ction of the webs 4, it will be understood that saidremovable section may be provided with only one groove as shown in 3,and where such construction is utilized the removable section will breakinto two parts. v I

The grooves 5. and 46 are made V-shaped in cross-section in order toprovide sufficient clearance space between the corners of the removablesections when the sameswing or move inwardly when broken away, "thusdoing awa with the danger of breaking the wall 1 o the tile and therebyrendering same unfit for use. Thus it will be seen how I have provided atile with strengthening webs which maintain said tile in proper, duringthe time the same is in a soft con ition and while the tile is beingdried and burned, and portions of which webs are readily removed priorto the setting or 10- cation of the tile in a wall or like structure.

It is essential that the V-shaped grooves extend at least half-waythrough the thickness of the webs 4 in order that the removable sectionsof said webs will readily break away without any wedging action or any agroove formed in the outer face of each of the pair ofwebs all of whichgrooves extend half way through the webs to 'permit t e portions of thewebs between said gr oves to be removed without exerting pressure on theend portions of the walls of the tile.

2. The herein-described tile comprising a pair-of walls, webs connectingthe ends of said walls there being grooves formed in the inner faces ofsaid webs which grooves are arranged adjacent the walls of the tile,there being a groove formed in the outer face of each web which lastmentioned groove is arranged between the grooves on the inner face ofsaid web all of which grooves extend half way through the webs therebeing shallow grooves formed in the faces of the webs directly oppositethe first mentioned grooves, and a web connecting the central portionsof the walls.

3. The herein-described tile comprising :1

- pair of walls, webs connecting the end portions of said walls therebeing grooves formed in both faces of each web which grooves extend overhalf-way through the webs in order that portions of said webs betweenthe grooves may be removed without.

exerting outward pressure on the end portions of the walls, and a webconnecting the central portions of the walls.

In testimony whereof I hereunto ailix my signature in the presence oftwo witnesses, this 29th day of March 1909.

ERNEST F. WIEDERHOLDT. Witnesses:

F. R. CORNWALL, LENORE CLARK.

